11
2.9.4 Module as UDP Client
Figure 13. UDP Client
In this mode, the module sends the serial port data directly to the specified ip, port, and the data
returned from the server will be sent to the serial port.
2.10 Application areas
Smart home;
Instruments and instruments;
Wi-Fi remote monitoring / control;
Toy field;
Color LED control;
Fire protection, security intelligent integrated management;
Smart card terminals, wireless POS machines, handheld devices and so on.
3.
AT Instructions
Instruction format: in AT instruction mode, the system can be configured through the AT
instructions of the serial port. The command format is as follows:
at+[command]=[value],[value],[value]......
All commands begin with "at" and "\ r" end. If the command is not encapsulated in this format,
it will not be processed and will return a different return value depending on the command module.
For example:“at+ver=?”
Module will return: HLK-RM58S (V1.00 (Nov 30 2017)
Query instruction format: at+[command]=?
UDP Server
UDP Client
